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Change Healthcare PeerVue Web Server

Monitor4.3ICS-CERT ICSMA-18-277-02Oct 4, 2018
Attack VectorAdjacent
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

A vulnerability in the PeerVue Web Server allows an attacker to obtain technical information about the system through information disclosure, potentially enabling targeting of the system for further attack. The vulnerability affects all versions prior to 7.6.2.

What this means
What could happen
An attacker could gather system information about your PeerVue Web Server, which could be used to plan further attacks on your healthcare system's monitoring or control infrastructure.
Who's at risk
Healthcare organizations using GE Vernova's PeerVue Web Server for patient monitoring or clinical system management should prioritize this update. The server is commonly deployed in hospital networks for device integration and data collection.
How it could be exploited
An attacker with network access to the PeerVue Web Server can craft requests to the server to extract technical information (such as software version, configuration details, or internal paths) without authentication. This reconnaissance information could then be used to identify additional vulnerabilities for follow-up exploitation.
Prerequisites
  • Network access to the PeerVue Web Server
  • No authentication required
  • Attacker is on the same network segment or the server is reachable from the attacker's location
information disclosureno authentication requiredlow attack complexitypotential reconnaissance for secondary attacks
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (1)
ProductAffected VersionsFix Status
PeerVue Web Server: all<7.6.27.6.2
Remediation & Mitigation
0/4
Do now
0/1
HARDENINGRestrict network access to the PeerVue Web Server: place it behind a firewall and limit connectivity to only authorized medical systems and workstations
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate PeerVue Web Server to version 7.6.2 or later
Long-term hardening
0/2
HARDENINGIsolate the PeerVue Web Server and connected medical devices from the general business network using a separate healthcare network segment
HARDENINGIf remote access to the PeerVue Web Server is required, use a VPN with current security patches and ensure all connected devices are also kept up to date
View full CISA ICS-CERT advisory
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